Get an array of available track types, with their parameter used in search filters being the index.
https://tmuf.exchange/api/meta/tracktypes // TMUF-X
https://tmnf.exchange/api/meta/tracktypes // TMNF-X
https://original.tm-exchange.com/api/meta/tracktypes // TMO-X
https://sunrise.tm-exchange.com/api/meta/tracktypes // TMS-X
https://nations.tm-exchange.com/api/meta/tracktypes // TMN-X
["Race","Puzzle","Platform","Stunts"]